Overview
The M27C256B-10C6 is a 256 Kbit EPROM (Erasable Programmable Read-Only Memory) produced by STMicroelectronics. This device is available in two ranges: UV (ultra violet erase) and OTP (one time programmable). It is organized as 32,768 by 8 bits, making it ideally suited for microprocessor systems. The M27C256B is offered in various packages, including FDIP28W (window ceramic frit-seal package), PDIP28, and PLCC32, with ECOPACK® options to meet environmental requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Read Operation) | 5V ± 10% | V |
| Access Time | 45ns | ns |
| Active Current (at 5MHz) | 30mA | mA |
| Standby Current | 100µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time | 100µs/Word | µs/Word |
| Ambient Operating Temperature | –40 to 125 | °C |
| Storage Temperature | –65 to 150 | °C |
| Input/Output Voltage (except A9) | –2 to 7 | V |
| A9 Voltage | –2 to 13.5 | V |
| Program Supply Voltage | –2 to 14 | V |
Key Features
- Low Power Consumption: Active current of 30mA at 5MHz and standby current of 100µA.
- Fast Access Time: 45ns access time for quick data retrieval.
- Programming Flexibility: Supports both UV and OTP programming with a programming time of 100µs per word.
- Electronic Signature: Allows for the reading of a binary code to identify the manufacturer and device type.
- ECOPACK® Packages: Available in lead-free packages to meet environmental requirements.
- Two-Line Output Control: Features a two-line control function to minimize memory power dissipation and prevent output bus contention.
Applications
The M27C256B-10C6 is ideally suited for microprocessor systems, particularly in applications where non-volatile memory is required. It can be used in various fields such as industrial control systems, automotive electronics, consumer electronics, and any other application requiring programmable and erasable memory.
Q & A
- What is the storage capacity of the M27C256B-10C6? The M27C256B-10C6 has a storage capacity of 256 Kbits, organized as 32,768 by 8 bits.
- What are the different package options available for the M27C256B-10C6? The device is available in FDIP28W, PDIP28, and PLCC32 packages, with ECOPACK® options.
- What is the supply voltage for read operations? The supply voltage for read operations is 5V ± 10%.
- What is the access time of the M27C256B-10C6? The access time is 45ns.
- How does the standby mode affect the supply current? In standby mode, the supply current reduces from 30mA to 100µA.
- What is the programming voltage and time for the M27C256B-10C6? The programming voltage is 12.75V ± 0.25V, and the programming time is 100µs per word.
- How does the electronic signature feature work? The electronic signature mode allows reading a binary code to identify the manufacturer and device type by applying specific voltages to address line A9 and toggling address line A0.
- What is the purpose of the two-line output control function? The two-line control function minimizes memory power dissipation and prevents output bus contention, making it suitable for larger memory arrays.
- What are the temperature ranges for operation and storage? The ambient operating temperature range is –40 to 125°C, and the storage temperature range is –65 to 150°C.
- Is the M27C256B-10C6 available in environmentally friendly packages? Yes, it is available in ECOPACK® packages, which are lead-free and meet environmental requirements.
